All the following are related to innate immunity except

Options

A. Anamnestic response
B. Interferons
C. PMNL - neutrophils
D. Monocytes

Answer

To solve the question "All the following are related to innate immunity except," we need to analyze the options provided and identify which one does not belong to innate immunity. Here’s a step-by-step breakdown of the solution:

### Step-by-Step Solution:

1. **Understand Innate Immunity**:
- Innate immunity is the first line of defense and is present from birth. It includes physical barriers (like skin), chemical barriers (like enzymes), and various immune cells (like white blood cells).

2. **Identify the Options**:
- The question implies that there are multiple options related to immunity. We need to evaluate each option to determine if it is part of innate immunity or not.

3. **Evaluate Interferons**:
- Interferons are proteins that are part of the innate immune response. They are produced by cells in response to viral infections and help to inhibit viral replication. Therefore, interferons are related to innate immunity.

4. **Evaluate PMNL Neutrophils**:
- PMNL (Polymorphonuclear leukocytes) neutrophils are a type of white blood cell that plays a crucial role in the innate immune response by attacking pathogens. Thus, they are also related to innate immunity.

5. **Evaluate Monocytes**:
- Monocytes are another type of white blood cell that is part of the innate immune system. They can differentiate into macrophages and dendritic cells, which are essential for the innate immune response. Hence, monocytes are related to innate immunity.

6. **Evaluate Anamnestic Response**:
- The anamnestic response, also known as the secondary immune response, refers to the enhanced immune response upon re-exposure to a previously encountered antigen. This response is part of acquired immunity, not innate immunity.

7. **Conclusion**:
- Based on the evaluations, the only option that is not related to innate immunity is the anamnestic response. Therefore, the correct answer to the question is the anamnestic response.

### Final Answer:
The correct answer is: **Anamnestic response** (it is related to acquired immunity, not innate immunity).

---